CVE-2026-18743
Low
No strong exploitation signal.
CVSS base
2.5
LOW
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
EPSS — probability of exploitation (30 days)
0.1%
3.8th percentile
CISA KEV
Not listed
Weakness / dates
CWE-131
Published 2026-09-01 · modified 2026-09-08
Description
A flaw was found in popt. This vulnerability allows an attacker to provide specially crafted configuration content to a host, which, when loaded, can lead to a small memory corruption issue. This occurs because of an error in how the `poptConfigFileToString` function reallocates memory for buffers. Successful exploitation could result in heap metadata corruption, potentially causing the affected process to become unavailable (denial of service).